What is a North Star metric and how do I pick one?

Your North Star is the single number that, when it grows, your business is genuinely healthier. For an online store it's usually revenue or contribution margin. For a services business, qualified leads per month. For an operations-heavy business, hours saved. The test is threefold: it tracks value you deliver, your actions can move it, and you can count it without a meeting.

What metrics should an ecommerce store track versus a services business?

An ecommerce store: revenue as the North Star, supported by conversion rate, average order value, and revenue by channel. A services business: qualified leads per month as the North Star, supported by enquiry-to-client conversion, average engagement value, and where leads come from. In both cases the discipline matters more than the exact picks: four numbers, reviewed weekly.

How often should a small business review its metrics?

Weekly, for 15 minutes, with one action taken as a result. A deeper monthly look is worth adding once the weekly habit is real. The failure mode isn't reviewing too rarely, it's building a reporting ritual that produces no decisions, which kills the habit within a quarter.

What tools do I need to track growth metrics?

Less than you think. GA4 with proper conversion events covers the website numbers, your accounting or commerce platform covers revenue, and a plain spreadsheet is a perfectly good scorecard. SMEs lose more value to untracked events and unused dashboards than to missing tools.

Can Garage 30 help define and wire up our metrics?

Yes. Every Garage 30 engagement starts by agreeing a North Star metric and a definition of done, then wiring the measurement so the numbers arrive without manual effort. Book a 30-minute call at cal.com/casey-hemingway/30min and we'll work out what your North Star should be.

What growth metrics should a NZ SME actually track?

A NZ SME should track one North Star metric and three supporting numbers, reviewed weekly. That's it. The North Star is the single figure that proves the business is healthier, like revenue, qualified leads per month, or hours saved. The supporting three explain why it moved. More than five metrics, in practice, is zero metrics.

The scorecard problem

Most small businesses don't have a measurement problem. They have an attention problem.

The tooling is free now, so it's never been easier to track forty things. But attention is the resource that was scarce all along. A scorecard with forty numbers gets glanced at, nodded at, and ignored, and a metric nobody acts on is just decoration with a query behind it. The discipline of choosing four numbers and actually responding to them beats the comprehensive dashboard every single time. Yeah, four feels uncomfortably few. That's the point. The discomfort is your strategy being forced to commit.

Choosing the North Star

The North Star has to pass three tests:

It tracks value you deliver. Not activity. Followers and sessions measure noise; revenue and qualified leads measure value changing hands.
Your actions can move it. If nothing you did this month could shift it, it's weather, not a metric.
You can count it without a meeting. If the number needs a discussion to agree on, it will quietly stop being counted.

For most NZ trading businesses that lands on revenue or margin. For services firms, qualified leads per month. For an internal or operations product, hours saved. One number, agreed, written down. Every engagement I run starts with this, because a project without a North Star never knows when it's working.

The lagging-indicator trap

Here's the turn most SMEs miss: revenue is history. By the time it dips, the cause is two or three months behind you, baked in and paid for.

So at least one of your three supporting metrics must be a leading indicator: a number that predicts the North Star instead of remembering it. Enquiries this week predict next month's revenue. Email list growth predicts next quarter's sales. Repeat-purchase rate predicts next year's baseline. Lagging numbers tell you the score. Leading numbers let you change it while it still counts.

A solid default set: North Star, one leading indicator that feeds it, one efficiency number (conversion rate or cost per acquisition), and one channel or source number so you know where to push.

What this looks like beyond revenue: Himalayan Trust

The framework isn't a commerce trick, and the Himalayan Trust is the proof I keep coming back to. It's a non-profit working between NZ and Nepal, so "revenue" is the wrong frame entirely. The North Star is sustainable funding for the programmes, which in practice means dependable, recurring support rather than one-off spikes.

That single choice reorganises everything underneath it. The supporting numbers become donor acquisition, donor retention, and average gift, and suddenly the leading indicator is obvious: new regular givers this month predicts next year's programme funding far better than any one-off campaign total. The automation work, like donation flows in Raisely and lifecycle email through ActiveCampaign and Klaviyo, exists to serve those numbers, not to look busy.

Same discipline, completely different business. One North Star, three supporting, reviewed on a rhythm. The framework flexes; the focus doesn't.

/ From the workshop · Outdoors retail · Queenstown

Small Planet: Online revenue from $30k to $300k+ inside 12 months.

Read the case study →

The 15-minute ritual

The metrics only work attached to a habit, so here's the whole operating system: 15 minutes, once a week, same day. Look at the four numbers. Ask which one moved and why. Take one action because of what you see. Write one sentence so future-you remembers the reasoning.

That's smaller than it sounds and harder than it looks. The setup takes a day. The ritual is the actual investment, and it's the part your competitors will skip.

The takeaway

One North Star that passes the three tests. Three supporting numbers, at least one of them leading. A 15-minute weekly look that ends in an action. If your current scorecard is bigger than that, you're not tracking more, you're acting on less.